TWI771833B - Knife handle collet set for preventing tool drop - Google Patents

Abstract

The invention is provided with a knife handle, a collet, a first positioning key, a cutter, a second positioning key, a pressing piece and a knife handle sleeve; the knife handle is provided with at least one first clamping groove in its interior; the The collet is arranged in the handle, and is respectively provided with a first keyway and at least one second clamping slot on the outer peripheral surface and the inner peripheral surface of the collet; the first positioning key is arranged in the first keyway, and is provided with a first keyway The protruding column extends into the at least one first clamping groove; the tool extends into the collet, and the tool is provided with a second keyway on its outer peripheral surface; the second positioning key is arranged in the second keyway, A second protruding post is also provided, and extends into the at least one second clamping slot; the pressing piece is against the tool; the tool handle sleeve is combined with the tool handle; so as to provide a high applicability to prevent the tool from falling off. Knife handle collet set.

Description

Knife handle collet set for preventing tool drop

The present invention relates to a knife handle collet group, in particular to a knife handle collet group for preventing tool drop.

The existing knife handle set for preventing the knife from falling mainly includes a knife handle, a knife and a positioning element, the knife is inserted into the knife handle, and the knife is positioned in the knife handle through the positioning element, so as to prevent the knife from falling from the knife handle .

However, knives of different sizes cannot be positioned in the same size handle through the positioning element, which reduces the applicability of the existing knife handle set for preventing knife drop. Therefore, the existing knife handle set for preventing knife falling has its own areas that need to be improved. .

In order to solve the problem that when the existing anti-knife handle set is in use, knives of different sizes cannot be positioned in the same size handle through the positioning element, thereby reducing the applicability of the existing anti-knife handle set, the main purpose of the present invention is to Provide a tool handle collet set for preventing tool drop which can solve the current technical problem, which includes: a tool handle, the tool handle is provided with a accommodating chamber, a combining groove and at least a first clamping groove, the accommodating chamber is formed in the In the knife handle, the combination groove is formed in the knife handle and communicated with the accommodating chamber, and the at least one first clamping groove is formed on the inner peripheral surface of the accommodating chamber; a collet, the collet is set in the accommodating chamber of the tool handle, and is provided with a first key groove and at least one second clamping groove, the first key groove is formed on the outer peripheral surface of the collet, the at least one first key groove Two clamping grooves are formed on the inner peripheral surface of the collet; a first positioning key, the first positioning key is set in the first key groove of the collet, and is provided with a first convex column, the first convex column The first positioning key is protruded from the first positioning key and can be inserted into the at least one first clamping groove of the tool handle, so that the first positioning key and the collet are limited to the tool handle; a tool, the tool is inserted into the cylinder clamp, and the tool is provided with a second keyway, the second keyway is formed on the outer peripheral surface of the tool; a second positioning key, the second positioning key is set in the second keyway of the tool, and has a first keyway Two protruding posts, the second protruding posts are protruded from the second positioning key and can extend into the at least one second clamping groove of the collet, so that the second positioning key and the tool are restricted to the collet ; A pressing piece, the pressing piece is combined with the combination groove of the tool handle, so that the pressing piece is abutted against the end of the tool extending into the collet, and the second protrusion of the second positioning key can be The post is pressed against the at least one second clamping groove; and a knife handle sleeve is combined with the outside of the knife handle provided with the accommodating chamber.

Further, in the aforementioned tool holder collet set for preventing tool drop, the at least one first clamping groove of the tool holder is provided with a first guide channel and a first limit groove, and the first guide channel is concave It is formed on the inner peripheral surface of the accommodating chamber, and the first limiting groove is concavely formed on the inner peripheral surface of the accommodating chamber, communicates with the first guide channel, and is connected with the first guide channel. There is an included angle between the guide channels.

Still further, in the aforementioned tool handle collet set for preventing tool drop, wherein the at least one second clamping groove of the collet is provided with a second guiding channel and a second limiting groove, the second guiding The channel is concavely formed on the inner peripheral surface of the collet, the second limiting groove penetrates the collet, communicates with the second guide channel, and has an included angle with the second guide channel set up.

Further, in the aforementioned tool handle collet set for preventing tool drop, wherein the at least one second clamping groove of the collet is provided with a second guide channel and a second limit groove, the second guide The channel is concavely formed on the inner peripheral surface of the collet, and the second limiting groove is concavely formed on the inner peripheral surface of the collet, communicated with the second guide channel, and communicated with the second guide channel. There is an included angle between the guide channels.

Preferably, in the aforementioned tool handle collet set for preventing tool drop, wherein the tool handle is provided with an end cover, the end cover is combined with one end of the tool handle adjacent to the accommodating chamber, and is provided with at least one guide groove. , the at least one guide groove is concavely formed on the inner peripheral surface of the end cover, and the at least one guide groove is linearly opposite to the at least one first clamping groove.

More preferably, in the knife handle collet set for preventing the knife from falling as mentioned above, the knife handle is provided with an end cover, the end cover is combined with one end of the knife handle adjacent to the accommodating chamber, and is provided with at least one guide groove. , the at least one guide groove is concavely formed on the inner peripheral surface of the end cover, and the at least one guide groove is linearly opposite to the first guide channel of the at least one first clamping groove.

More preferably, in the aforementioned tool holder collet set for preventing tool drop, the tool holder collet set for preventing tool drop is provided with a bearing ring, and the bearing ring is sleeved on the outer periphery of the tool holder with the accommodating chamber. the surface between the handle and the handle sleeve.

By the above-mentioned technical means, the effect obtained by the present invention is increased: when compared with the existing knife handle set for preventing tool drop, when the knife handle set of different sizes cannot be positioned in the knife handle of the same size through the positioning element, the existing knife handle is reduced. The applicability of the tool handle set for preventing tool drop, the tool holder collet set for preventing tool drop of the present invention is provided with the collet between the tool handle and the tool, and the tool is limited to the collet through the second positioning key, the The collet is limited to the tool handle through the first positioning key. If the size of the tool is different, the user can replace the collet that can be used with the tool. The outer diameter of each collet is the same and can match the same size. The inner diameter of each collet is inconsistent, but can be used with different sizes of knives, thereby improving the applicability of the knife handle collet set of the invention for preventing the knife from falling.

10: Knife handle

11: accommodating room

12: Combined slot

13: The first card slot

131: The first guide channel

132: The first limit slot

14: End cap

141: Guide groove

20: Bearing ring

30: Knife handle sleeve

40: collet

41: The first keyway

42: The second card slot

421: Second guide channel

422: The second limit slot

50: The first positioning key

51: The first convex column

60: Knives

61: Second keyway

70: Second positioning key

71: The second convex column

80: Pressing parts

FIG. 1 is a partial perspective sectional view of a preferred embodiment of the present invention.

FIG. 2 is a partial cross-sectional perspective exploded view of a preferred embodiment of the present invention.

3 is a cross-sectional side view of the preferred embodiment of the present invention.

4 is a quarter perspective cross-sectional view of a knife handle according to a preferred embodiment of the present invention.

Fig. 5 is a cross-sectional side view of the handle of the preferred embodiment of the present invention.

FIG. 6 is a cross-sectional end view of the handle of the preferred embodiment of the present invention taken along line A-A of FIG. 5 .

Fig. 7 is a quarter perspective sectional view of a collet according to a preferred embodiment of the present invention.

8 is a quarter perspective sectional view of another aspect of the collet of the preferred embodiment of the present invention.

9 to 12 are schematic diagrams of the assembly method of the preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, and to realize it according to the contents of the description, hereby further take the preferred embodiment as shown in the drawings, and the detailed description is as follows: The preferred embodiment of the tool holder collet set is shown in Figures 1 to 3, which comprises a tool holder 10, a bearing ring 20, a tool holder sleeve 30, a collet 40, a first positioning key 50, a tool 60, A second positioning key 70 and a pressing member 80, wherein: as shown in Figures 2 and 4 to 6, the handle 10 is provided with an accommodating chamber 11, a combining groove 12, at least one first clamping groove 13 and an end cover 14. The accommodating chamber 11 is formed in the handle 10 . The coupling groove 12 is formed in the handle 10 , the inner diameter of the coupling groove 12 is smaller than the inner diameter of the accommodating chamber 11 , and the coupling groove 12 communicates with the accommodating chamber 11 . The at least one first clamping groove 13 is formed on the inner peripheral surface of the accommodating chamber 11 , and the at least one first clamping groove 13 is provided with a first guiding channel 131 and a first limiting groove 132 . The first guide channel 131 is concavely formed on the inner peripheral surface of the accommodating chamber 11 and extends along the axial direction of the knife handle 10 , and the first limiting groove 132 is concavely formed in the accommodating chamber 11 . on the peripheral surface, communicated with the first guide channel 131, and arranged at an included angle with the first guide channel 131; further, the clip The angle is 90°. The end cover 14 is combined with one end of the knife handle 10 adjacent to the accommodating chamber 11 , and is provided with at least one guide groove 141 , the at least one guide groove 141 is recessed and formed on the inner peripheral surface of the end cover 14 , and the At least one guide groove 141 is linearly opposite to the first guide channel 131 of the at least one first clamping groove 13 . In a preferred embodiment of the present invention, the handle 10 is provided with three first clamping grooves 13 , the end cover 14 is provided with three guiding grooves 141 , and each guiding groove 141 is connected to one of the first clamping grooves 13 . The first guide channels 131 are opposite to each other in a straight line.

As shown in FIGS. 1 to 3 , the bearing ring 20 is sleeved on the outer peripheral surface of the knife handle 10 with the accommodating chamber 11 . The handle sleeve 30 is combined with the handle 10 and is sleeved on the outside of the bearing ring 20 , so that the bearing ring 20 is located between the handle 10 and the handle sleeve 30 .

As shown in FIGS. 1 to 3 and 7 , the collet 40 is disposed in the accommodating chamber 11 of the tool handle 10 , and is provided with a first key groove 41 and at least one second clamping groove 42 . The first key groove 41 is formed on the outer peripheral surface of the collet 40 . The at least one second clamping groove 42 is formed on the inner peripheral surface of the collet 40 , and the at least one second clamping groove 42 is provided with a second guiding channel 421 and a second limiting groove 422 . The guide channel 421 is concavely formed on the inner peripheral surface of the collet 40 and extends along the axial direction of the collet 40 . The second limiting groove 422 penetrates the collet 40 and is connected with the second guide The channel 421 communicates with the second guide channel 421 at an included angle; further, the included angle is 90°; further, as shown in FIG. 8 , in other preferred embodiments of the collet 40 , the second limiting groove 422 is concavely formed on the inner peripheral surface of the collet 40 and does not penetrate through the collet 40 .

As shown in FIGS. 1 to 3 , 11 and 12 , the first positioning key 50 is disposed in the first key groove 41 of the collet 40 , and has a first protruding post 51 , the first protruding post 51 protruding from the The first positioning key 50 can extend into the first guide channel 131 and the first limiting groove 132 of at least one first clamping groove 13 of the knife handle 10 , so that the first positioning key 50 and the collet 40 are Limited to 10 of the handle.

As shown in FIGS. 2 , 3 and 9 , the cutter 60 is inserted into the collet 40 , and the cutter 60 is provided with a second key groove 61 , and the second key groove 61 is formed on the outer peripheral surface of the cutter 60 . As shown in FIGS. 2 , 3 , 7 and 9 , the second positioning key 70 is arranged in the second key groove 61 of the tool 60 and has a second protruding post 71 . The second protruding post 71 protrudes from the second positioning key 70 and can extend into the second guiding channel 421 and the second limiting groove 422 of at least one second clamping groove 42 of the collet 40 , so that the first Two positioning keys 70 are restrained in the collet 40 together with the tool 60 .

As shown in FIGS. 3 and 7 , the pressing member 80 is combined with the coupling groove 12 of the handle 10 and extends into the accommodating chamber 11 of the handle 10 , so that the pressing member 80 abuts against the knife 60 and extends into the accommodating chamber 11 . At the end of the collet 40 , the second protruding column 71 of the second positioning key 70 can be pressed against the second limiting groove 422 of at least one second clamping groove 42 of the collet 40 .

As shown in Figures 2, 3, 7 and 9, when the tool holder collet of the present invention is assembled, the second positioning key 70 is firstly placed in the second key groove 61 of the tool 60, and then the second positioning key 70 is placed in the second key groove 61 of the tool 60. The cutter 60 is inserted into the collet 40, and at the same time, the second protrusion 71 of the second positioning key 70 is moved along the second guide channel 421 of the at least one second clamping groove 42. After the column 71 is moved to the second limiting groove 422, the cutter 60 is rotated, so that the second positioning key 70 is rotated together, and the second convex column 71 is rotated into the second limiting groove 422, thereby being The second limiting groove 422 limits the position. So far, the tool 60 is limited in the collet 40 through the second positioning key 70 . As shown in FIGS. 3 , 4 and 10 to 12 , next, place the first positioning key 50 in the first keyway 41 of the collet 40 , and then extend the collet 40 into the accommodating chamber of the knife handle 10 11, and at the same time move the first protruding post 51 of the first positioning key 50 along the first guide channel 131 of the at least one first clamping slot 13 until the first protruding post 51 moves to the first After the limiting slot 132 is removed, the collet 40 is rotated to make the first positioning key 50 rotate together, and the first protruding post 51 is rotated into the first limiting slot 132, and is then moved by the first limiting slot. 132 limit.

By the above-mentioned technical means, the effect obtained by the present invention is increased: when compared with the existing knife handle set for preventing tool drop, when the knife handle set of different sizes cannot be positioned in the knife handle of the same size through the positioning element, the existing knife handle is reduced. The applicability of the tool-drop-proof handle set, the tool-drop-proof tool handle collet set of the present invention is provided with the collet 40 between the tool handle 10 and the tool 60 , and the tool 60 is limited to the position of the tool 60 through the second positioning key 70 . The collet 40, the collet 40 is limited to the handle through the first positioning key 50 10. If the size of the tool 60 is different, the user can replace the collet 40 that can be used with the tool 60, wherein the outer diameter of each collet 40 is the same, and can be used with the knife handle 10 of the same size. The inner diameter of the tool 40 is inconsistent, but can be used with different sizes of tools 60, thereby improving the applicability of the tool holder collet set for preventing tool drop of the present invention.

10: Knife handle

11: accommodating room

12: Combined slot

132: The first limit slot

20: Bearing ring

30: Knife handle sleeve

40: collet

41: The first keyway

50: The first positioning key

51: The first convex column

60: Knives

80: Pressing parts

Claims (10)

A knife handle collet set for preventing tool drop, which is provided with: a knife handle, the knife handle is provided with an accommodating chamber, a combination groove and at least a first clamping groove, the accommodating chamber is formed in the knife handle, the combination a groove is formed in the knife handle and communicated with the accommodating chamber, the at least one first clamping groove is formed on the inner peripheral surface of the accommodating chamber; a collet is set in the accommodating chamber of the knife handle A first key groove and at least one second clamping groove are arranged in the chamber, the first key groove is formed on the outer peripheral surface of the collet, and the at least one second clamping groove is formed on the inner peripheral surface of the collet; a A first positioning key, the first positioning key is set in the first key groove of the collet, and is provided with a first protruding post, the first protruding post is protruding from the first positioning key and can extend into the tool handle The at least one first clamping groove of the 1 , so that the first positioning key and the collet are limited to the tool handle; a tool, the tool extends into the collet, and the tool is provided with a second keyway, the second The keyway is formed on the outer peripheral surface of the tool; a second positioning key is arranged in the second keyway of the tool, and is provided with a second protruding post, the second protruding post is protruded from the second a positioning key, which can be inserted into the at least one second clamping groove of the collet, so that the second positioning key and the tool are restricted in the collet; a pressing piece, the pressing piece is combined with the a combination groove, so that the pressing member abuts against the end of the tool extending into the collet, so that the second protruding column of the second positioning key can be pressed against the at least one second clamping groove; and A knife handle sleeve, the knife handle sleeve is combined with the outside of the knife handle provided with the accommodating chamber. The tool handle collet set for preventing tool drop as claimed in claim 1, wherein the at least one first clamping groove of the tool handle is provided with a first guide channel and a first limit groove, and the first guide channel is concave It is formed on the inner peripheral surface of the accommodating chamber, and the first limiting groove is concavely formed on the inner peripheral surface of the accommodating chamber, communicates with the first guide channel, and is connected with the first guide channel. There is an included angle between the guide channels. The tool handle collet set for preventing tool drop according to claim 1, wherein the at least one second clamping groove of the collet is provided with a second guide channel and a second limit groove, and the second guide channel The concave is formed on the inner peripheral surface of the collet, the second limiting groove penetrates the collet, communicates with the second guide channel, and is arranged at an included angle with the second guide channel . The tool handle collet set for preventing tool drop as claimed in claim 2, wherein the at least one second clamping groove of the collet is provided with a second guide channel and a second limit groove, the second guide channel The concave is formed on the inner peripheral surface of the collet, the second limiting groove penetrates the collet, communicates with the second guide channel, and is arranged at an included angle with the second guide channel . The tool handle collet set for preventing tool drop according to claim 1, wherein the at least one second clamping groove of the collet is provided with a second guide channel and a second limit groove, and the second guide channel The concave is formed on the inner peripheral surface of the collet, the second limiting groove is concavely formed on the inner peripheral surface of the collet, communicated with the second guide channel, and is connected with the second guide There is an included angle between the channels. The tool handle collet set for preventing tool drop as claimed in claim 2, wherein the at least one second clamping groove of the collet is provided with a second guide channel and a second limit groove, the second guide channel The concave is formed on the inner peripheral surface of the collet, the second limiting groove is concavely formed on the inner peripheral surface of the collet, communicated with the second guide channel, and is connected with the second guide There is an included angle between the channels. The tool handle collet set for preventing the tool from falling off according to claim 1, wherein the tool handle is provided with an end cover, the end cover is combined with an end of the tool handle adjacent to the accommodating chamber, and is provided with at least one guide groove, the at least one end cover is provided. A guide groove is concavely formed on the inner peripheral surface of the end cover, and the at least one guide groove is linearly opposite to the at least one first clamping groove. The tool handle collet set for preventing the tool from falling off according to any one of claims 2, 4 and 6, wherein the tool handle is provided with an end cover, the end cover is combined with one end of the tool handle adjacent to the accommodating chamber, and is provided with At least one guide groove, the at least one guide groove is concavely formed on the inner peripheral surface of the end cover, and the at least one guide groove is linearly opposite to the first guide channel of the at least one first clamping groove. The tool holder collet set for preventing tool drop according to any one of claims 1 to 7, wherein the tool drop preventing tool holder collet set is provided with a bearing ring, and the bearing ring is sleeved on the tool holder and has the accommodating ring. The outer peripheral surface of the chamber is between the knife handle and the knife handle sleeve. The tool holder collet set for preventing tool drop according to claim 8, wherein the tool drop preventing tool holder collet set is provided with a bearing ring, and the bearing ring is sleeved on the outer peripheral surface of the tool holder with the accommodating chamber, and between the handle and the handle sleeve.

Images